19662984

素因数分解:

$2^3\times 3^2\times {\mathrm{11}}^2\times {\mathrm{37}}^1\times {\mathrm{61}}^1$

素因数の和:132

約数の個数: 144

約数和(自身を含む): 61102860

約数和(自身を除く): 41439876

約数列:

[1, 2, 3, 4, 6, 8, 9, 11, 12, 18, 22, 24, 33, 36, 37, 44, 61, 66, 72, 74, 88, 99, 111, 121, 122, 132, 148, 183, 198, 222, 242, 244, 264, 296, 333, 363, 366, 396, 407, 444, 484, 488, 549, 666, 671, 726, 732, 792, 814, 888, 968, 1089, 1098, 1221, 1332, 1342, 1452, 1464, 1628, 2013, 2178, 2196, 2257, 2442, 2664, 2684, 2904, 3256, 3663, 4026, 4356, 4392, 4477, 4514, 4884, 5368, 6039, 6771, 7326, 7381, 8052, 8712, 8954, 9028, 9768, 12078, 13431, 13542, 14652, 14762, 16104, 17908, 18056, 20313, 22143, 24156, 24827, 26862, 27084, 29304, 29524, 35816, 40293, 40626, 44286, 48312, 49654, 53724, 54168, 59048, 66429, 74481, 80586, 81252, 88572, 99308, 107448, 132858, 148962, 161172, 162504, 177144, 198616, 223443, 265716, 273097, 297924, 322344, 446886, 531432, 546194, 595848, 819291, 893772, 1092388, 1638582, 1787544, 2184776, 2457873, 3277164, 4915746, 6554328, 9831492, 19662984]

約数ペア:

[(1, 19662984), (2, 9831492), (3, 6554328), (4, 4915746), (6, 3277164), (8, 2457873), (9, 2184776), (11, 1787544), (12, 1638582), (18, 1092388), (22, 893772), (24, 819291), (33, 595848), (36, 546194), (37, 531432), (44, 446886), (61, 322344), (66, 297924), (72, 273097), (74, 265716), (88, 223443), (99, 198616), (111, 177144), (121, 162504), (122, 161172), (132, 148962), (148, 132858), (183, 107448), (198, 99308), (222, 88572), (242, 81252), (244, 80586), (264, 74481), (296, 66429), (333, 59048), (363, 54168), (366, 53724), (396, 49654), (407, 48312), (444, 44286), (484, 40626), (488, 40293), (549, 35816), (666, 29524), (671, 29304), (726, 27084), (732, 26862), (792, 24827), (814, 24156), (888, 22143), (968, 20313), (1089, 18056), (1098, 17908), (1221, 16104), (1332, 14762), (1342, 14652), (1452, 13542), (1464, 13431), (1628, 12078), (2013, 9768), (2178, 9028), (2196, 8954), (2257, 8712), (2442, 8052), (2664, 7381), (2684, 7326), (2904, 6771), (3256, 6039), (3663, 5368), (4026, 4884), (4356, 4514), (4392, 4477)]